33results about How to "Fast light curing" patented technology

The invention relates to ultraviolet (UV) curing ink and a preparation method thereof. The UV curing ink comprises the components by mass percent: 32-42% of non-isocyanate polyurethane acrylate oligomer, 16-24% of epoxy acrylate oligomer, 18-32% of reactive diluent, 3-6% of photoinitiator, 2-4% of nano silicon dioxide, 1-2% of auxiliary agents and 6-12% of pigments. The invention also discloses the preparation method of the UV curing ink. The UV curing ink does not contain a polyisocyanic acid functional group, has environmental protection property, is rapid in photocuring, and has good gloss as well as excellent adhesive force, mechanical property and oil resistance.

The invention discloses a polyimide oligomer capable of quick photocuring. The structural general formula of the oligomer is disclosed in the specification, wherein 1<=x<=25, and 0<=y<=25; R1 is selected from one of isopropylidene group and sulfinyl group; R2 and R3 are selected from one of ether oxy group, sulfinyl group, carbonyl group, hexafluoroisopropylidene group, bis(4-phenoxy)isopropylidene group, 1,4-p-diphenoxy group and 1,3-m-diphenoxy group; and R4 is selected from one of hydrogen and methyl group. The invention also discloses a preparation method and application of the oligomer. The method is simple, and has the advantages of accessible raw materials and lower cost. The preparation technique is compatible with universal technological equipment, and is beneficial to industrialization.

The invention discloses a photocurable polyetheretherketone oligomer. The photocurable polyetheretherketone oligomer has molecular weight of 1000 to 10000 and has a general structural formula shown inthe description. In the formula, n is greater than or equal to 1 and less than or equal to 10, R1 represents one or more of groups shown in the description, R2 represents one or more of groups shownin the description, R3 represents one or more of O and groups shown in the description and R4 represents one of H and CH3. The invention also discloses a preparation method of the photocurable polyetheretherketone oligomer. The preparation method improves the solubility of polyetheretherketone in an active diluent, realizes the unsaturation and molecular weight controllable preparation of the polyetheretherketone oligomer and solves the problems of dissolution difficulty and melting difficulty. Through use of the active double bond, the polyetheretherketone resin can be directly and fast curedand molded without the conventional high-temperature molding method.

The invention discloses a light/temperature double sensitive hydrogel and a preparation method thereof, wherein the temperature sensitive part of the hydrogel is obtained by introducing hydroxybutyl into a chitosan molecular chain (Patent No. 201110214776.X), and the free amino group of hydroxybutyl chitosan and the epoxy group of glycidyl methacrylate are subjected to a ring-opening reaction to introduce a photosensitive group so as to obtain the photosensitive part. According to the present invention, the methacrylylated hydroxybutyl chitosan hydrogel is in a solution state at a low temperature, can be subjected to flowing injection, and can form a hydrogel within 1 min when a temperature is raised to around 37 DEG C; a photoinitiator is added into a prepolymer solution, the obtained solution is exposed to ultraviolet light, and the photoinitiator generates free radicals to initiate methacryloyl-substituted chain polymerization, such that the strength of the gel is significantly enhanced; and the light/temperature double sensitive hydrogel has good application prospects in the fields of tissue engineering scaffolds or drug sustained-release delivery and the like.

The invention relates to a temperature-resistant thickening light-cured epoxy vinyl ester resin and a preparation method thereof, and specifically discloses an epoxy vinyl ester resin composition. Thecomposition comprises components (A) to (G). The invention also discloses a method for preparing the resin composition, and a resin product comprising the resin composition.

The present invention relates to a photo-curable resin composition and, more particularly, to a photo-curable resin composition for forming micro patterns, the photo-curable resin composition being applicable to a flexible display substrate since the composition can be cured at high speed and has excellent coating properties, adhesive properties and acid resistance by virtue of comprising acrylamide monomer.

The invention discloses an optical release film. The optical release film comprises a base film layer, a release agent layer coated at the surface of the base film layer, and the release agent layer is obtained by solidifying a release agent. The release agent comprises the following components: prepolymerized resin, methylhydroquinone, 3-epoxypropane, dodecyl glycidyl ether, and 1-hydroxy cyclohexyl phenylketone. The prepolymerized resin is obtained by the following steps: mixing cyclohexyl methacrylate, beta-carboxyethyl acrylate, and acrylic acid in a stirring barrel, and uniformly stirringthe materials at a low speed to form a primary mixture; mixing primary mixture, xylene, and benzoyl peroxide and adding a mixture in a reaction vessel to obtain a polymer solution; stirring the polymer solution and 2-hydroxyethyl vinyl ether at a high speed, and heating the materials and performing heating distillation to remove xylene to obtain the prepolymerized resin. The release film increases the product weatherability, cannot generate unfavorable influence on electric property of a circuit board, and increases the reliability of the circuit board.

The invention relates to a composite bionic body surface tissue and an integrated construction method thereof, and the method comprises the following specific steps: adding a proper amount of an auxiliary agent into cartilage acellular matrix photosensitive gel, and uniformly mixing to obtain cartilage membrane bio-ink; adding a proper amount of auxiliary agent II into the cartilage acellular matrix photosensitive gel, and uniformly mixing to obtain cartilage biological ink; adding seed cells into cartilage membrane bio-ink to form a mixed solution I, and adding a proper amount of seed cells into cartilage bio-ink to form a mixed solution II; and integrally constructing the composite bionic body surface tissue by using the mixed solution I and the mixed solution II. The method has the beneficial effects that the body surface tissue with the bilateral cartilage membranes and the middle cartilage tissue is constructed, the structure and composition characteristics of the body surface tissue containing the cartilage membranes are simulated, and different bionic scaffold materials and functional cells are utilized to realize mechanical bionics through structure and composition bionics, so that the mechanical strength of the construction material is improved, and the construction cost is reduced. The clinical application requirements of body surface tissue reconstruction are met.

The invention relates to a bionic body surface tissue and a step-by-step construction method thereof, and the method comprises the following specific steps: preparing cartilage acellular matrix photosensitive gel and an auxiliary agent into a micro/nano fiber membrane by using an electrostatic spinning instrument, and preparing a bionic cartilage membrane; dissolving the cartilage acellular matrix photosensitive gel and an auxiliary agent in a complete culture medium to form cartilage hydrogel; adding the seed cells into the cartilage hydrogel to form biological ink; and constructing a bionic body surface tissue by using the bionic cartilage membrane and the biological printed cartilage. The structure and composition characteristics of the cartilage membrane-containing body surface tissue are simulated, an acellular matrix material is used, the electrostatic spinning and biological printing technologies are combined to realize dual biomimetic of the composition and the structure, different functional cells are used to realize matrix biomimetic, and the body surface cartilage tissue with the cartilage membranes on the two sides and the cartilage tissue in the middle is constructed step by step. And mechanical bionics are achieved through structure and component bionics, the mechanical strength of constructors is improved, and the clinical application requirements of body surface tissue reconstruction are met.

The technical scheme of the invention discloses a manufacturing method of a bipolar plate. The manufacturing method comprises the following steps: providing a mold; filling a conductive slurry with a photocuring characteristic in the mold; carrying out light curing on the conductive slurry to form a light-cured polar plate used as an anode plate or a cathode plate; and carrying out demolding treatment, so that the light-cured polar plate is separated from the mold. According to the technical scheme, a simple and rapid photocuring bipolar plate processing mode is provided. The preparation method is carried out at normal temperature, and is low in production cost, simple in process and suitable for mass production.

The invention discloses a preparation method and application of modified sulfydryl-containing liquid silicone resin and non-toxic, colorless and odorless light-cured liquid silicone rubber. The modified sulfydryl-containing liquid silicon resin is prepared by the following steps: S1-1) preparing vinyl modified white carbon black; S1-2) preparing modified sulfydryl-containing liquid silicon resin: stirring and reacting a mercaptopropyl silane coupling agent, dimethyl dialkoxy silane, trialkoxy silane, an end-capping reagent, a solvent and an acid catalyst under a heating condition to obtain the sulfydryl-containing liquid silicon resin; and reacting a photoinitiator, the vinyl modified white carbon black prepared in the step S1) and an acid catalyst to obtain the modified sulfydryl-containing liquid silicon resin. The initiator, the filler, the cross-linking agent and other components are in bond connection with the self-made-SH liquid silicon resin through chemical reaction, the problems that traditional light-cured silicon rubber has unpleasant smell before curing, small molecule components are prone to escaping and the like are fundamentally solved, and the light-cured silicon rubber can be applied to medical light-cured materials.